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NOTE:
*Make sure that the driver bit
is
inserted straight in the screw head, or
the
screw and/or
bit may be damaged
*When driving wood Screws, predrill pilot
holes to make driving easier and to pre-
vent splitting of the workpiece. See the
chart.
4
8
(3116")
I
5
1 (13164")
I
3
1
-
3
4
(118''
-
9/64',)
3 3
-
3
6
(118''
-
9/64',)
Drilling operation
First, turn the adjusting ring
so
that the pointer on the adjusting ring points to the
*\-
mark-
ing. Then proceed as follows.
*Drilling in wood
When drilling in wood, best results are obtained with wood drills equipped with
a
guide
screw. The guide screw makes drilling easier
by
pulling the bit into the workpiece.
To prevent the bit from slipping when starting
a
hole, make an indentation with
a
center-
punch and hammer at the point to be drilled. Place the point of the bit in the indentation
and start drilling.
Use
a
cutting lubricant when drilling metals. The exceptions are iron and brass which
should be drilled dry.
*Drilling in metal
CAUTION:
*Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pres-
sure will only serve to damage the tip of your bit, decrease the tool performance and
shorten the service life of the tool.
*There is
a
tremendous force exerted on the tool/bit
at
the time of hole breakthrough. Hold
the tool firmly and exert care when the bit begins to break through the workpiece.
*A stuck bit can be removed simply by setting the reversing switch to reverse rotation in
order to back out. However, the tool may back out abruptly if you do not hold it firmly.
*Always secure small workpieces in
a
vise or similar hold-down device
11